source: azure_iot_hub_f767zi/trunk/asp_baseplatform/lwip/contrib-2.1.0/apps/LwipMibCompiler/LwipSnmpCodeGeneration/IRestriction.cs@ 457

/*
 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 * This file is part of the lwIP TCP/IP stack.
 *
 * Author: Martin Hentschel <info@cl-soft.de>
 *
 */

using System;

namespace LwipSnmpCodeGeneration
{
        public interface IRestriction
        {
                string GetCheckCodeValid(string varNameToCheck);
                string GetCheckCodeInvalid(string varNameToCheck);
        }

        public class BitMaskRestriction : IRestriction
        {
                UInt32 mask;

                public BitMaskRestriction(UInt32 mask)
                {
                        this.mask = mask;
                }

                public string GetCheckCodeValid(string varNameToCheck)
                {
                        return String.Format("(({0} & {1}) == {0})", varNameToCheck, this.mask);
                }

                public string GetCheckCodeInvalid(string varNameToCheck)
                {
                        return String.Format("(({0} & {1}) != {0})", varNameToCheck, this.mask);
                }
        }

        public class IsEqualRestriction : IRestriction
        {
                private Int64 value;

                public IsEqualRestriction(Int64 value)
                {
                        this.value = value;
                }

                public long Value
                {
                        get { return value; }
                }

                public string GetCheckCodeValid(string varNameToCheck)
                {
                        return String.Format("({0} == {1})", varNameToCheck, this.value);
                }

                public string GetCheckCodeInvalid(string varNameToCheck)
                {
                        return String.Format("({0} != {1})", varNameToCheck, this.value);
                }
        }

        public class IsInRangeRestriction : IRestriction
        {
                private Int64 rangeStart;
                private Int64 rangeEnd;

                public IsInRangeRestriction(Int64 rangeStart, Int64 rangeEnd)
                {
                        this.rangeStart = rangeStart;
                        this.rangeEnd   = rangeEnd;
                }

                public long RangeStart
                {
                        get { return this.rangeStart; }
                }

                public long RangeEnd
                {
                        get { return this.rangeEnd; }
                }

                public string GetCheckCodeValid(string varNameToCheck)
                {
                        return String.Format("(({0} >= {1}) && ({0} <= {2}))", varNameToCheck, this.rangeStart, this.rangeEnd);
                }

                public string GetCheckCodeInvalid(string varNameToCheck)
                {
                        return String.Format("(({0} < {1}) || ({0} > {2}))", varNameToCheck, this.rangeStart, this.rangeEnd);
                }
        }

}